<%--
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  User: 24044
  Date: 2021/6/3
  Time: 20:20
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--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%
    pageContext.setAttribute("key1","value1");
    request.setAttribute("key2","value2");
    session.setAttribute("key3","value3");
    application.setAttribute("key4","value4");
%>
${pageScope.key1}<br/>
${requestScope.key2}<br/>
${sessionScope.key3}<br/>
${applicationScope.key4}<br/>
</body>
</html>
